At the BFS, you observe different patches of two different grass species, Bromus

Question

At the BFS, you observe different patches of two different grass species, Bromus madritensis and Bromus hordeaceus. You then test how these two grass species germinate when grown in the same patch, and Find that more B. madritensis seeds sprouted faster than B. hordeaceus, and as a result grew longer blades. This finding would best support which hypothesis? A. Bromus madritensis is an ecosystem engineer B. There is a priority effect C. Bromus hordeaceus yielded higher seed dormancy D. Bromus madritensis has evolved more slowly

Explanation / Answer

There may be Priority effect. It is a phenomenon in which, early invade species more acclimatized to perticular area and dominates that area in comparison to later invade species

In this case B. madrisensis first invade the area and accostom ed and grow more than B. hordaceus. So answer is B

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